A display device includes a substrate including an active area having pixels and a non-active area including a pad region. A pad electrode is disposed in the pad region and includes a first pad electrode and a second pad electrode disposed on the first pad electrode. A first insulating pattern is interposed between the first and second pad electrodes. In a plan view, the first insulating pattern is positioned inside the first pad electrode, and a portion of the second pad electrode overlapping the first insulating pattern protrudes further from the substrate in a thickness direction than a portion of the second pad electrode not overlapping the first insulating pattern. The second pad electrode directly contacts a portion of the upper surface of the first pad electrode. In a plan view, an area of the second pad electrode is greater than an area of the first pad electrode.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The display device of claim 1, wherein the pad electrode has a relatively longer side extending in a first direction and a relatively shorter side extending in a second direction intersecting the first direction.
3. The display device of claim 2, wherein the first insulating pattern extends longitudinally in the first direction, and a width of the first pad electrode in the second direction is greater than a width of the first insulating pattern in the second direction.
4. The display device of claim 3, wherein a width of the first insulating pattern in the first direction is greater than the width of the first insulating pattern in the second direction.
5. The display device of claim 4, wherein an area on a first side of the first insulating pattern in the second direction is substantially the same as an area on a second side of the first insulating pattern in the second direction that is opposite to the first side based on an imaginary line extending in the first direction.
7. The display device of claim 3, wherein a width of the second pad electrode in the second direction is greater than a width of the first pad electrode in the second direction.
8. The display device of claim 7, wherein the second pad electrode directly contacts a side surface of the first pad electrode.
12. The display device of claim 2, wherein the first insulating pattern includes a plurality of first separation patterns that are spaced apart from each other in the first direction.
13. The display device of claim 12, wherein the plurality of first separation patterns are concentrated in a first region overlapping the first pad electrode.
15. The display device of claim 9, wherein the third pad electrode directly contacts an upper surface and a side surface of the second insulating pattern.
26. The display device of claim 25, wherein the first insulating pattern is selectively disposed on each of the plurality of first sub-pad electrodes.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
December 29, 2021
February 27, 2024
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